Louver-blind



B. JONES.

LOUVER BLIND.

APPLICATION FILED AUG-21, IQIQ.

Patented Jan. 18,1921.

2 SHEETS-SHEET l- B. JONES.

LOUVER BLIND.

APPLICATION FILED AUG.27, 1919.

1,365,919. Patented Jan. 18,1921.

2 SHEETS-SHEET 2.

stantially on the line 3-3 of Fig. 4 is a perspective view of another to maintain the UNITED STATES PATENT OFFICE.

BEVAN JONES, OF NEW YORK, N. Y..

LOUSTEB-IBLIND.

To all whom it may concern:

Be it known that I, BEVAN Jones, a citizen of the United States, and residing at New York city, New York county, State'of New York, have invented certaln new and useful Improvements in Louver-Blinds, of which the following is a specification.

The present invention relates to louver blinds and more particularly to means for adjusting the slats of the blinds to regulate the direct passage and reflection of light. For this-purpose the devices supporting the slats of the blinds on one side thereof are shortened at intervals between adjacent slats thereby dividing the slats of the blind into groups, the inclination of the slats comprising each group being different from that of any other group. The objects and features of novelty of the invention will be apparent from the 'description taken in connection with the drawings, in which- 3 Figure 1 is a sectional elevation through a blind embodying the present invention;

Fig. 2 is a perspective view of a clip used gathers or folds in the supporting devices; r

Fig. 3 is a transverse section taken sub- Fig. 2;

form of clip; and I Fig. 5 is a top plan view of the clip shown in Flg. 4.

Referrin to the drawings the blind illustrated typi es any of the usual constructions, as the invention is adapted for employment with various forms of louver blinds. The blind illustrated comprises the usual top bar 10 which is pivotally mounted to tilt about a longitudinal axis. The slats 11 of the blind are supported by means of the devices 12 and 13 secured to the top bar 10. As is well known there are two or more of the devices 12 on one side of the blind and two or more of the devices 13 on the other side. Usually these supporting devices are in the form of tapes.

The present invention consists in the provision of means for decreasing the space between the edges at one side of a pair of adjacent slats whereby the lower of said pair of slats, and all slats below the same, are transversely inclined relatively to the other slats of the blind. .As shown the devices 13 between a pair of adjacent slats as a and b are shortened, thereby inclining the Specification or manhunt. t t 11 .18, 1 Application filed .Lugust 27,. 1919 Serial No. 82Q,23 4.

slat b and all below the same at a different angle from the slats above the slat b. This may be accomplished, where the devices 13 are in the form oftapes by forming a fold or gather in the tapes and maintaining this lgather by a clip such as shown in Fig. 2. hus the cli comprises a backing member 14 having exible end tongues 15 and 16, adapted to extend through alined apertures formed in the plates 17 18 and 19- This clip is adapted to be assembled with I the tape 13 passing down between the backing member and the plate 17 thence up between the two plates 17 and 18 and then downward between the plates 18 and 19, the parts being held together by bending .down the free ends of the tongues 15 and 16 as shown in Fig. 2.

The form of clip illustrated in Fig. 4 comprises two U-shaped members 20 and 21 assembled together in spaced relation at their bases by being secured to a channel member 22 in any suitable manner, as by brazing or soldering. One arm of the member 20 is formed with a flexible tongue 23 and the other arm of said member 20 and both the arms of the member 21 are formed with alined slots for receiving said tongue. This clip 1s adapted to be positioned on the tape 13 by sliding the same into engagement with the folds thereof by a longitudinal movement and thereafter .bending up the tongue 23 to the position illustrated for the purpose of clamping the parts together.

While clips have been shown for maintaining the gathers in the tapes 13, it is obvious that where other forms of slat supporting devices are employed, that other means may be used for shortening the supporting devices 13 between pairs of adjacent slats.

One of the objects of the invention is to provide means for adjusting the inclination of the slatsso that no direct light will'strike a desired point such as indicated at E, and at the same time will permit the maximum free passage of light between certain slats of the blind. In the arrangement illustrated in Fig. 1, this result is accomplished by shortening the devices 13 between three pairs of slats. Thus in addition-to shortening the devices 13 between the slats a and b, said devices are also shortened between the slats c and d and also between the slats e and i. As stated this may be accomplished I horizontal.

folds or gathers and maintaining these gathers by some such means as the clips hereto-" fore described.

It will be observed that in this manner the slats of the blind illustrated in Fig. 1 are divided into four groups, the inclination of the slats in each group being the same, but different from that of any other group. Thus the slats of the upper group are horizontal While the slats of the second group are held at an angle at with respect to the The slats of the third group are at a steeper inclination, being held at an angle n to the horizontal. Finally the slats of the fourth or bottom group are at the steepest inclination, being at an angle 0 to the horizontal. Because the slats of the upper group are horizontal, the maximum free passage fol-light is provided in this group,

' while less horizontal rays of light can pass level behind said blinds, but are not inter-,

ed claims.

through the second roup, still less through the third group an none through the bottom group of slats. At the same time no direct rays of light can strike at the-point E, which may be at any given distance fromthe blind and any distance above the floor. Moreover, a greater amount of direct and reflected light will reach the ceiling and at a greater distance from the window than if all the slats were set at the same angle as that of the bottom slats.

It will be seen, according to the present invention, means is provided for assembling the blind with the. slats arranged in groups, each group having its slats inclined at a different angle from that of any other group. Further, that the arrangement of the group of slats as to the number in cluded in each, and the angle of inclination, may be accomplished either at the factory or when erectin the blind in the window or opening Where it is to be located.

Although a specific form of the invention has been described in detail it. is to be understood that the invention is not thus limited,'but includes modifications and changeswhich come within the scope of the append- Having thus described the invention what is claimed as new and desired to be secured by Letters Patent is r 1. A louver blind having transverse slats, supporting meansfor said slats intermediate the ends thereof, a plurality of said means being shortened at definite points to maintain some of said slats at different transverse angles of inclination with reference to'horizontal lines so that direct rays of light are interrupted as concerns objects at a definite rupted as to objects at other levels.

r 2. A louver blind having transverseslats,

supporting means 'for said slats intermediate the ends thereof, a plurality of said means being shortened at definite points to maintain some of said slats at increasing angles of inclination with reference to horizontal lines, from the top toward the bottom of said blind.

3. A louver. blind having devices at opposite sides thereof to support the sluts in parallel spaced relation, and means to shorten the length of said device at one side of the blind between a pair of slats.

4. A louver blind having tapes at opposite sides thereof to support the sluts in spaced parallel relation, and removable clips producing a fold or gathering in a portion of the tapes on one side of the blind between a pair of slats, thereby transversely inclining the slats at a greater angle below the gathering relative to horizontal lines than the slats above the same. a

. 5. A louver blind having tapes at opposite sides thereof to support the slats in parallel spaced relation, and means for producing gatherings in the tapes at one side of the blind between pairs of adjacent slats whereby the slats are divided into groups, the slats of each group being transversely inclined at different an les in relation to the angles of the slats of the other groups whereby maximum admission of direct rays of light is permitted without direct rays striking an object at an elevation corresponding to 'jacent ends of said strips together, and

means for holding the opposite ends of said strips.

8. Means for holding and shortening flexible bands comprising, a series of metallic strips, one of said strips being provided with integral tongues and the others of said strips being provided with recesses which engage said tongues, the ends of said tongues being bent at right angles to hold said strips together.

9. The combination with a flexible band, of metallic means for shortening the same comprising a plurality of parallel strips between which said band passes successively, and clips for holding said strips together at their ends, adjacent the margins of said band.

In-testimony whereof I afiix my signature.

BEvAN JONES. 

